AbstractHaving easy access to information became vital for people living in the 21st century but most of all for passengers and commuters. As a response to this demand, public transport operators along with municipalities and software engineers started creating a variety of programs called trip planners that have the main purpose to inform passengers about: arriving time, routes, prices, distances, points of interest, location, connections with other means of transport, number of transfers and other information. This paper analyzes the importance of trip planners for public transportation operators and for passengers who use public transportation. The authors present trip planners used today in different cities from different countries and ...